You are right. I had tried it earlier and difference is not that much in absolute terms BUT it can miss many opportunities. Like I could rarely take pic of my moving kid with EP1 but with GF1 I am finding keeper ration in terms of blur and focus is much beter

Roger65
wrote:

You have made the right choice if AF speed is a priority. I would suggest the 14-45 lens for you, it will focus lightning fast on the GF-1. To be honest I have not noticed a huge difference in Oly/Pany focus speed with the 20 Panasonic lens mounted. The GF-1 does have the assist lamp though, which will help low light focus regardless of the lens mounted.